Base for chairs and the like



Aug. 4, 1931. E. c. HARTER BASE:4 FOR CHAIRS ND THE LIKE Filed Nov. 21, 1927 satepnted ug. 4, 1931 UNITED STATES EvAN c. imitrex, or sTURGI's, `lvrIcHIeAN BASE FOR CHAIRS AND THE mim Application filed November 21, 1927. `Serial'No.'234,668.

This invention relates to chairs and particularly to bases for chairs and the like, and more especially tov chairs made principally of metal, for use in factories, oflices, and so An object of this invention is to provide a simple and economical, but strong, chair which is suiliciently yieldable to enable it to adjust itself to considerable irregularities of i service so that if the chair is resting upon an irregular surface, it will spring sufficiently to let all of the legs have a bearing thereon. This and other objects, as will hereinafter appear, are accomplished by this invention which is fully described in the following specification and shown in the accompanying drawings, in which f Figure 1 is a front elevation of a chair'embodying the invention;

Fig. 2 is an enlarged horizontal section on the line 2 of Figure 1; and

' Fig. 3 is a vertical section on the broken line 3-3 of Figure 2. Y

The embodiment illustrated comprises a chair having a base A, a seat B and a back C. The base A is composed primarily of .four legs 10 which are preferably tubular and which 'are secured to spaced spider members 11. A central standard member 12, preferably of .tubular form, passes through openings 13 in the spider members 11V and is adjustably secured in place as-will later be described. This central standard 12 is secured to the crossed braces 14 which are' secured to 35 the under portion of the seat B. The back C is secured to the seat by any suitable side braces 15'.A The legs 10 which, as was previously stated, are preferably tubular, are formed with vertically parallel upper por- Vtions 10a and with downwardly and outwardly curved lower portions which terminate in gliders or casters 10b. The upper portions 10a are provided with openings 10C on the inside to accommodate ears 112L on the spider members 11.

into the openings 10C and have openings 11b which are adapted to accommodate pins 16 and are so positioned that when the pins are Y driven therethrough, the inner portion of the 5'" legs 10a are somewhat deiected so as to firmly These ears fit snuglyV retain the pin 16 in place and-also'prevent much movement between the spider membersv 11 and the legs. At the same time, the spider members 111 are slightly yieldable so that if one ofy 'theV` 55 legs rests upon a high spot in the floor, thel vwhole will yield somewhat so `as to give all',

four of the legs a bearing on the1 floor. A spacer-plate 17 may also be used to give a little additional stiifnessto the legs,'if de- 60 sired. l'

The central standard 12is adjustably secured between the spider members vv11 by means of a clamp 18 which surrounds this tube and which has ears at its endsthrough which pass a bolt 19 whichmay'be tightened to secure the .clamp about ther standard 12.A After being tightened, the tube 12 and' clamp 18 are freely rotatable, the clamp 18`resting upon the lower spider member and havingla 7U bearing thereon.

WhileY I have shown and described but a single embodiment of this invention, it is to be understood that it is capable of` many modifications. Changes, therefore, in the construction and arrangement vmay be `made which do not depart from the spirit and scope of the invention as disclosed in the appended claims.

I claim:

1. In a base for chairs and the like, a cen-y tral vertical rod, spaced spider members having central openings adaptedto receive said rod and having *outwardly projecting perforated ears, legs having openings through which pass said ears, and pins in said perforations to prevent the withdrawal of said legs.

tral vertical rod, spaced spider members hav- 9 ing central holes adapted to receive said rod and having outwardly projecting perforated ears, legs having openings through which pass said ears, said openings closely fitting' said ears, and pins in said perforations to prevent the' withdrawal of said legs.

3.l In a base for chairs andthe like, a central vertical rod, spaced spider members having central holes adapted to receive said rod and having outwardly projecting perforated mf( 2. In a base for chairs and the like, a cen-` I ears, legs having openings through which pass said ears, said openings closely tting said ears, and pins 1n said perforations to prevent the Withdrawal of said legs, one pinl extending through the openings in both ears in the same leg.

4. In a base for chairs and the like, a 'central vertical rod, spaced members having central openings adapted to receive said rod,

legs having lateral openings, portions of -said members extending through said openings in said legs and being apertured, and pins extending into saidapertures in said meinbers and clamping said legs against said meinbers.

5. In a ba-se for chairs and the like, a central vertical rod, spaced members having central openingsto receive said rod, legs having lateral openings, said members having portions extending through said openings in said legs and being apertured, and pins in the apertures in said members to prevent the yWithdrawal of said legs. i

6. In a base for chairs and the like, a eentral vertical rod, spaced members having central openings adapted to receive said rod, hollow legs having openings in their side Walls, portions of said inenlbers extending through said openings in said legs and being apertured, and clamping members extending into said apertures in said members and engaging the inner surfaces of said legs and clamping said legs against said members.

In testimony whereof, I have hereunto set my hand this 9th day of N evember, 1927.

EVAN C. HARTER. 

